Dominus is a Paper 1.21+ plugin (Java 21) that grants trusted operators two covert control modes over a Minecraft server. In World Mode, a hotbar of custom tools manipulates the environment at will: tsunamis, lightning, fire, block gravity, instant tree growth, snowfall, water drainage, time control, and an entity grabber. In Mob Mode, the Dominus disguises as any living mob via LibsDisguises, inheriting its size, health, speed, equipment, abilities, and vanilla behaviors — down to zombies burning in sunlight and villagers that actually trade. A per-player configuration controls every dimension of stealth independently: invisibility, tab list and server-list presence, fake join/leave messages, muted sounds, hidden particles, and more, with separate settings for regular players and fellow Dominus. Access is governed by two whitelists (Dominus and Super Dominus) with dynamically granted permissions, so the /dominus command simply doesn't exist for anyone else.